Enfrentaron la situación juntos.

Enfrentaron is the preterite (also called the simple past) of enfrentar.

Here it is:

• yo enfrenté = I faced
• tú enfrentaste = you faced
• él/ella/usted enfrentó = he/she/you faced
• ellos/ellas/ustedes enfrentaron = they/you all faced

So enfrentaron la situación juntos means that they faced the situation together as a completed past action.

By itself, enfrentaron means they faced.

Spanish often leaves out the subject pronoun because the verb ending already shows who the subject is. So instead of saying Ellos enfrentaron la situación juntos, Spanish can simply say:

• Enfrentaron la situación juntos.

In Spain, enfrentaron could also refer to ustedes in a formal plural context, but in most everyday learning contexts you would usually understand it as they faced.

Because Spanish is a pro-drop language, which means subject pronouns are often omitted when the verb already makes the subject clear.

So:

• Ellos enfrentaron la situación juntos
• Enfrentaron la situación juntos

Both are correct, but the second is more natural unless you need emphasis or contrast.

La situación is the direct object of the verb enfrentaron.

• la = the (feminine singular definite article)
• situación = situation

It is feminine, which is why it uses la, not el.

So the structure is:

• Enfrentaron = they faced
• la situación = the situation
• juntos = together

Juntos agrees with the people doing the action.

Use:

• juntos if the group is all male or mixed
• juntas if the group is all female

So:

• Enfrentaron la situación juntos = They faced the situation together.
  (mixed group or all men)
• Enfrentaron la situación juntas = They faced the situation together.
  (all women)

It is traditionally an adjective used adverbially.

Literally, juntos means together or together/jointly, and it agrees in gender and number with the subject:

• junto
• junta
• juntos
• juntas

Even though English uses the adverb together, Spanish often uses junto/juntos/juntas in this kind of structure.

Yes. Enfrentar means to face or to confront. It works well for problems, challenges, or difficult situations.

Other possible verbs include:

• afrontar = to face, to confront
• encarar = to face, to confront

So these are also possible:

• Afrontaron la situación juntos.
• Encararon la situación juntos.

They are similar, though nuance and register can vary slightly.

Good question. Spanish has both:

• enfrentar algo = to face something
• enfrentarse a algo = to confront / to come up against / to face something

So you could say:

• Enfrentaron la situación juntos.
• Se enfrentaron a la situación juntos.

Both are understandable, but enfrentarse a is a very common pattern in Spanish when talking about dealing with a problem, challenge, or opponent.

For a learner, it is useful to remember:

• enfrentar + direct object
• enfrentarse a + noun

Situación has a written accent because the stress falls on the final syllable:

• si-tua-ción

Words ending in n, s, or a vowel are normally stressed on the second-to-last syllable. Since situación is stressed on the last syllable instead, it needs an accent mark.

Yes, usually.

In Spain, the normal informal plural is vosotros/vosotras, so you would normally say:

• Enfrentasteis la situación juntos.
  = You all faced the situation together.

If speaking formally to several people, Spain can use ustedes, and then the verb would be:

• Ustedes enfrentaron la situación juntos.

So in Spain:

• enfrentaron usually sounds like they faced
• enfrentasteis is the usual informal you all faced

Yes. Juntos is flexible in placement, although some positions sound more natural than others.

Common possibilities:

• Enfrentaron la situación juntos.
• Juntos enfrentaron la situación.

Both are correct. The first is more neutral and common. The second can give a little more emphasis to together.

You could say:

• Ellos enfrentaron la situación juntos.
• Ellas enfrentaron la situación juntas.

Adding the subject can help if you want to:

• make clear who they are
• contrast them with someone else
• add emphasis

But very often, Spanish leaves it out:

• Enfrentaron la situación juntos.

Yes, it is grammatical and natural.

That said, in Spain, many speakers might also commonly say:

• Afrontaron la situación juntos
• Se enfrentaron a la situación juntos

All are valid. Enfrentaron la situación juntos is perfectly understandable and correct.